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Continued growth occurs in the rhizome, where a lateral meristem takes over to form another pseudobulb and repeat the process. This process is evident in the jointed appearance of the rhizome, where each segment is the product of an individual meristem, but the sympodial nature of a stem is not always clearly visible.
Next, individually re-pot each division with fresh orchid medium, like sphagnum moss or bark.” New divisions only require light watering; place each in an area that's humid and bright—though ...
In botany, a pseudobulb is a storage organ found in many epiphytic and terrestrial sympodial orchids. It is derived from a thickening of the part of a stem between leaf nodes and may be composed of just one internode or several, termed heteroblastic and homoblastic respectively. All leaves and inflorescences usually arise from this structure.
The proembryo stage is defined by the continued growth of the cotyledons and axis elongation. [12] In addition, programmed cell death must occur during this stage. This is carried out throughout the entire growth process, like any other development. [14] However, in the torpedo stage of development, parts of the suspensor complex must be ...
The beautiful, ruffled flowers can look like a dress in motion. Some of these are very fragrant. The deep purple and white flowers of Oncidium "Sharry Baby" have the intoxicating smell of chocolate.
Growth of the stem is indeterminate in pattern (not pre-determined to stop at a particular point). [1] The functions of the stem are to raise and support the leaves and reproductive organs above the level of the soil, to facilitate absorption of light for photosynthesis, gas exchange, water exchange (transpiration), pollination, and seed ...
Auxin (pink dots) encourages growth straight up. 2, 3, 4. Sunlight strikes the plant at an angle. Auxin is concentrated on one side, encouraging growth at an angle from the preceding stem. Phototropism in Solanum lycopersicum. In biology, phototropism is the growth of an organism in response to a light stimulus.
Bulbophyllum is a genus of mostly epiphytic and lithophytic orchids in the family Orchidaceae. It is the largest genus in the orchid family and one of the largest genera of flowering plants with more than 2,000 species, exceeded in number only by Astragalus.